An ancestor of mine wrote a memoir of growing up in an Old West mining town. He saw one gunfight. In the early morning, a man saw the front door of his house open and another man walk out. Not happy to find that another gentleman's bacon had been in his grill, he demanded satisfaction. That led to an impromptu duel which the offended husband won. My ancestor was walking to school when it all went down.

That was probably an exceptional situation, since the town in question was notoriously violent and corrupt.